Question

Solve the system of equations.


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−5y−10x=45
−3y+10x=−5
​

Answer 1

X=-2

Y=-5

Explanation:

-5y-10x=45 Adding the equations

-3y+10x=-5

= -8y=40

-8y=40

-8y/-8=40/-8

Y=-5

-5y-10x=45

-5(-5)-10x=45......y is equal to-5

25-10×=45

-10x=45-25

-10x=20

-10x/-10=20/-10

X=-2

Answer 2

(-2,-5)
The first goal with equations like these is to get one of the variables to go away. You can do that by adding/subtracting one equation from the other. Then you solve for the one variable. Then you plug that answer into one of the original equations and solve.